题型:问答题 简答题 I was told that there were about 50 foreign students ________ Chinese in the school, most ________ were from Germany.A.study; of whomB.study; of themC.studying; of themD.studying; of whom 查看答案
题型:问答题 简答题 植物激素在农业生产和园林绿化方面得到广泛的应用,下列说法不正确的是[ ]A.利用生长素类似物合成除草剂,可清除农田和园林的杂草或抑制杂草生长B.在园林栽培中,可用赤霉素来促进植物细胞伸长,使植株增高C.在进行组织培养时,在培养基中加入适量的细胞分裂素可促进细胞分裂D.在果树挂果时,利用乙烯利促进果实细胞体积增大 查看答案